Internet speed tests by provider
Every test runs the same measurement. These pages add what to expect from your connection type, how to test it accurately and what to check when it is slow.
Fiber
Fiber plans are usually symmetrical, so upload should be close to download.
Google Fiber speed test
What to expect from Google Fiber and how to test it accurately over Ethernet.
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Verizon Fios speed test
Check your Fios speed against your plan and find out what to do if it falls short.
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EPB Fiber speed test
Test EPB's fiber network in Chattanooga, and why Wi-Fi may read lower than the line.
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C Spire speed test
C Spire Fiber speeds in Mississippi and nearby states, and how to fix slow results.
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Cable, DSL and regional providers
Upload is usually much lower than download on these connections.
Xfinity (Comcast) speed test
Why cable upload is lower than download, and how to test your Xfinity speed accurately.
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AT&T speed test
What to expect from AT&T Fiber, Internet Air and older copper service.
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Frontier speed test
Frontier Fiber versus older DSL, and what each should deliver.
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Cox speed test
Test your Cox cable speed and find out what to check when it is slow.
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CenturyLink speed test
CenturyLink fiber versus older DSL, and what each should deliver.
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Mediacom speed test
Test your Mediacom cable speed and see why upload is lower than download.
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WOW speed test
WOW cable and fiber speeds, and how to read your result.
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Optimum speed test
Optimum cable and fiber speeds, and how to read your result.
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Spectrum speed test
Why Spectrum upload is lower than download, and how to test your cable speed.
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Brightspeed speed test
DSL and fiber from the former CenturyLink network, and what each should deliver.
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Immedion speed test
Test your Immedion connection and learn how to read the results.
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Satellite
Low-orbit satellite internet is much faster than older satellite, but varies more.
By search engine
Want to understand the numbers? Read what a good download speed is or see the free network tools.
Don't see your provider?
The main speed test works on any connection.